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Finding the Fourth Proportional to 410,045.20, 615,240.60 and 223,190.80

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Solution

The fourth proportional to 410,045.20, 615,240.60 and 223,190.80 is: 334,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,045.20 : 615,240.60 = 223,190.80 : x
  2. Step 2: Convert to fraction form
    410,045.20/615,240.60 = 223,190.80/x
  3. Step 3: Cross multiply
    410,045.20x = 615,240.60 × 223,190.80
  4. Step 4: Simplify right side
    410,045.20x = 137,316,041,706.48
  5. Step 5: Solve for x
    x = 137,316,041,706.48/410,045.20
  6. Step 6: Final answer
    x = 334,880.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.